<template>
  <!-- 登录页面的整体盒子 -->
  <div class="login-container">
    <!-- 登录的盒子 -->
    <div class="login-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 登录的表单区域 -->
      <el-form
        :model="ruleForm"
        status-icon
        :rules="rules"
        ref="ruleForm"
        label-width="70px"
        class="demo-ruleForm"
      >
        <el-form-item label="用户名" prop="username">
          <el-input
            v-model.number="ruleForm.username"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input
            type="password"
            v-model="ruleForm.password"
            autocomplete="off"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>

        <el-form-item>
          <el-button type="primary" @click="submitForm('ruleForm')"
            >登录</el-button
          >
          <el-button @click="resetForm('ruleForm')">重置</el-button>
        </el-form-item>

        <el-link type="info" class="goReg" @click="$router.push('/reg')"
          >去注册</el-link
        >
      </el-form>
    </div>
  </div>
</template>

<script>
import { loginFun } from '@/api/user/index.js'
// 引入 base64 给用户密码加密
const Base64 = require('js-base64').Base64
export default {
  name: 'my-login',
  data() {
    return {
      ruleForm: {
        username: '',
        password: '',
      },
      rules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            pattern: /^[a-zA-Z0-9]{1,10}$/,
            message: '用户名必须是1-10的字母数字',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            pattern: /^\S{6,15}$/,
            message: '密码必须是6-15的非空字符',
            trigger: 'blur',
          },
        ],
      },
    }
  },
  methods: {
    submitForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          // 加密
          const encryptPwd = Base64.encode(this.ruleForm.password)
          loginFun(this.ruleForm).then(({ data: res }) => {
            if (res.code !== 0) return this.$message.error(res.message)
            this.$message.success(res.message)
            this.$store.commit('updateToken', res.token)
            this.$store.commit('updateUserPwd', encryptPwd)
            this.$store.dispatch('getUserInfo')
            this.$router.push('/main')
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    resetForm(formName) {
      this.$refs[formName].resetFields()
    },
  },
}
</script>

<style lang="less" scoped>
.login-container {
  background: url('@/assets/images/login_bg.jpg') center;
  background-size: cover;
  height: 100%;

  .login-box {
    width: 400px;
    height: 270px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    padding: 0 30px;
    box-sizing: border-box;

    .title-box {
      height: 60px;
      background: url('@/assets/images/login_title.png') center no-repeat;
    }
    .goReg {
      position: absolute;
      bottom: 20px;
      left: 50px;
    }
  }
}
</style>
